[tor-bugs] #7011 [Pluggable transport]: Stored IPv6 TransportProxy bindaddr lacks brackets

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#7011: Stored IPv6 TransportProxy bindaddr lacks brackets
---------------------------------+------------------------------------------
 Reporter:  dcf                  |          Owner:  asn
     Type:  defect               |         Status:  new
 Priority:  minor                |      Milestone:     
Component:  Pluggable transport  |        Version:     
 Keywords:                       |         Parent:     
   Points:                       |   Actualpoints:     
---------------------------------+------------------------------------------
 A managed proxy can announce that it is listening on an IPv6 address:

 {{{
 VERSION 1
 SMETHOD dummy [::]:10000
 SMETHODS DONE
 }}}

 tor caches the address in {{{~/.tor/state}}} without brackets around the
 IPv6 address:

 {{{
 Oct 02 03:18:30.000 [info] handle_proxy_line(): Got a line from managed
 proxy '/home/david/branches/tor/dummy.sh': (VERSION 1)
 Oct 02 03:18:30.000 [info] handle_proxy_line(): Got a line from managed
 proxy '/home/david/branches/tor/dummy.sh': (SMETHOD dummy [::]:10000)
 Oct 02 03:18:30.000 [info] parse_smethod_line(): Server transport dummy at
 [::]:10000.
 Oct 02 03:18:30.000 [info] handle_proxy_line(): Got a line from managed
 proxy '/home/david/branches/tor/dummy.sh': (SMETHODS DONE)
 Oct 02 03:18:30.000 [info] handle_methods_done(): Server managed proxy
 '/home/david/branches/tor/dummy.sh' configuration completed!
 Oct 02 03:18:30.000 [info] save_transport_to_state(): It's the first time
 we see this transport. Let's save its address:port
 Oct 02 03:18:30.000 [notice] Registered server transport 'dummy' at
 ':::10000'
 }}}

 {{{
 TransportProxy dummy :::10000
 }}}

 The next time running the transport, tor writes to the environment a
 {{{TOR_PT_SERVER_BINDADDR}}} without brackets as well.

 {{{
 TOR_PT_ORPORT=127.0.0.1:9001
 TOR_PT_EXTENDED_SERVER_PORT=
 TOR_PT_STATE_LOCATION=/home/david/.tor/pt_state/
 TOR_PT_MANAGED_TRANSPORT_VER=1
 TOR_PT_SERVER_TRANSPORTS=dummy
 TOR_PT_SERVER_BINDADDR=dummy-:::10000
 }}}

 Perhaps the IPv6 address should have brackets? The attached script can be
 used to reproduce this:

 {{{tor SocksPort 0 ORPort 9001 Log "info stderr" ServerTransportPlugin
 "dummy exec $(pwd)/dummy.sh"}}}

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/7011>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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